Ferrule-plug



(No Model.)

0. M. SMITH.

FERRULE PLUG AND MAGHINE FOR MAKING THE SAME.

No. 438,498. Patented Oct. 14, 1890.

I E M I 1' .f E W 1 I x 1m, lilH/ my? W a UNITED STATES PATENT 'ORREN M.SMITH, OF PHILADELPHIA, PENNSYLVANIA.

SPECIFICATION forming part of Letters Patent No. 438,498, dated October14, 1890.

Application filed August 21, 1890. Serial No. 362,677. (No model.)

To all whom it may concern.-

Be it known that I, ORREN M. SMITH, a citizen of the United States ofAmerica, residing at Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented certain new and useful Improvementsin Ferrule Points or Plugs, and Machines for Making Same; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to theaccompanying drawings, and to letters of reference marked thereon, whichform a part of this specification.

This invention relates to the manufacture of points or plugs forferrules.

The object of the invention is to provide a machine or apparatus for themanufacture of ferrule-points, by the use of which the blank iscompressed and shaped and provided with a circumferential depression,which is of the same size as the original blank.

In carrying out my invention 1 cut off from a cylindrical bar of metal,preferably steel, a piece of proper length, and which is in diameterconsiderably smaller than the point or plug will be when completed. Thisblank is first placed between a pair of sliding dies, which are groovedto embrace the blank and hold it firmly in position, and which willprevent the blank expanding at this point to produce upon the plug acircumferential recess, leaving the metal of the same diameter as theoriginal blank. These grooved and sliding dies are held directly over asolid die, which forms the flat or upper end of the plug. The followerwhich forms the end or lower portion of the plug is properly shaped, sothat when brought down upon the blank with pressure it will upset themetal and press the same to completely fill the dies, therebyshaping,compressing, and finishing the plug at one operation.

In the accompanying drawings, forming part of this specification, Figure1 is a sectional elevation showing the blank in position and the upperdie raised. Fig. 2 is a vertical sectional view showing the upper dielowered and the completed plug. Fig. 3 is a plan view of the slidingdies, which hold the blank centered and prevent the same being expanded,and which form at this point a circumferential groove.

A refers to the base portion of the apparatus, which is providedcentrally with a shouldered aperture A, within which is placed afollower B, the upper portion of which is of less width than theshouldered aperture,thereby providing between the upper end of thefollower B and upper edge of the base-plate A a space which fOrms oneend of the plug. This follower extends through the base A, and whendriven upward displaces the finished plug. The base A is also providedwith openings 0 0, through which pass downwardly-extending arms orbars DD,which at proper points are bent out of line, as shown, said bars alsopassing through openings E E in the sliding dies F F, said sliding diesbeing suitably held upon the base A by guides f f, in which they canhave not only an inward and outward movement, but also a slight rockingmovement, the under side of said dies being beveled so as to permit ofthis rocking movement. These sliding dies have circular recesses, whichembrace the blank when it is placed in position.

The upper guide G has a recess g, slightly larger than the blank and ofsuch configuration as it is desired to give to the point of the plug.The lower face of this upper die is slightly beveled.

In operation the blank 1 is placed upon the upper end of the follower B,and as the upper die is moved downward the sliding dies F F will moveinward to grasp the blank and center it, and after this has been donethe sliding dies are held against further movement. In the downwardmovement of the upper die G the blank is compressed and shaped, the samebeing upset sufliciently to fill the space beneath the sliding dies Fand also the recess in the upper die. When the upper die has reached thefull limit of its downward movement, the plug is completed.

By providing the sliding dies with beveled ends they will be permittedto have a slight rocking movement, which has the effect of looseningsaid dies from the groove in the completed plug, thus permitting thearms to be readily raised, and when the upper die reaches the limit ofits upward movement the sliding dies are retracted and the completedplug X, Fig. 2, remains in a vertical position in the lower die and canbe readily removed therefrom by forcing the follower B upward. The lowerdie is preferably formed with a raised portion surrounding the recess inwhich the follower lies, and the under side of the sliding dies areconstructed to lie substantially over the same.

In the use of the apparatus hereinbefore described the plugs or pointscan be rapidly and cheaply manufactured without loss of material, and byproviding the points with a groove they can be more securely attached tothe shell of the ferrule, and when completed will not have a wire-edgewhich would have to be removed, as would be the case if the points weremade by the use of the ordinary two-part dies.

I-Ieretofore points have been made by either shaping them in two-partdies or by turning them in a lathe. The point hereinbefore described ismuch more dense than the ordinary point, and is finished, the same beinghighly polished and smooth when it leaves the dies, especially that partof the same which will be exposed when attached to the ferrule.

The point is intended to be used in connection with ferrules attached tocanes, umbrellas, &c.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The improved article of manufacture consisting of a blank of metalcompressed and upset to provide a plug X, Fig. 2, having acircumferential recess near one end, substantially as set forth.

2. In an apparatus for man ufacturin g points or plugs for ferrules, thecombination, with a die having a recess adapted to form the pointthereof, of sliding dies for grasping and centering the blank, and a diehaving a follower, substantially as and for the purpose set forth.

3. In an apparatus for forming ferrulepoints, the combination of thesolid upper and lower dies, intermediate sliding dies havingsemicircular recesses for grasping the blank, and means for moving saidsliding dies, substantially as shown, and for the purpose set forth.

4. In combination with a solid upper die, having a recess for formingthe end of the point, a lower die having a shouldered recess and afollower, and intermediate sliding dies having beveled lower edges so asto be capable of a rocking movement, substantially as shown, and for thepurpose set forth.

5. In a device for manufacturing ferrulepoints, the combination, with abase A, having a central shouldered recess and a raised portionsurrounding the same, of a shouldered follower B, sliding dies F F,confined in suitable guides and provided with openings E, through whichpass operatingbars having bent portions for actuating and holding thesliding dies, and a solid die G with a recess, substantially as shown,and for the purpose set forth.

In testimony whereof I affix my signatu re in presence of two witnesses.

ORREN M. SMITH. \Vitnesses:

JOHN W. SPROWLES, ROBERT VVINTERBoTToM.

